Abstract: A device for the automatic ejection of a capsule or pellet in a machine for the production of hot beverages or coffee, where the machine comprises a movable part (13), moved by an actuator (14), and a fixed part (15), realising an infusion chamber (20) where the capsule or pellet (16) is placed, an extractor element (28) being foreseen, in the device the extractor element (28) being associated with a sliding element (21), provided at an upper end with an ejection plate (30) shaped to be arranged, in rest position, partially around the seat (20), transversally to the movement between the fixed part and the movable part, the sliding element (21) being movable through axial and rotation movement seat (20), the axial and rotation movement between a rest position and a raised position in which the rotating plate (30) removes a capsule placed in the determined by elements of mutual engagement (18, 19; 29), one arranged on the movable part (13) and the other on the sliding element (21), which may be disengaged in th

Abstract: A planar rigid support for electrophoresis comprising a cellulose acetate strip or the like can bear on two fixed highly spongy plates which are placed in the electrolytic bath so as to emerge from the upper level thereof. In particular, the support may comprise a resilient strip-holder, in which the fastening occurs by providing in the strip two series of holes which are inserted in stakes provided on two opposite sides of the strip-holder. The several steps for the analysis of total and fractional proteins are obtained displacing each support and other fittings by a handling means preferably provided with magnetic pliers cooperating with iron portions provided on each support or fitting to be handled.